Re: [squid-users] Client bypassing delay pool restrictions

Hi Amos,

It was my understanding that my quick_abort settings would do the
exact opposite. The manual states the following:

"If you do not want any retrieval to continue after the client has
aborted, set both 'quick_abort_min' and 'quick_abort_max' to '0 KB'."

I did however play around with both of these settings changing them to
'1 KB' and '100 KB' and the client is still able to transfer at
5Mbps+.

I am almost certain the client is not tech savvy enough to perform any
of the described tricky behavior.

Any other suggestions would greatly be appreciated!

Thanks again,
Ron M.

On Mon, Nov 15, 2010 at 5:40 AM, Amos Jeffries <squid3_at_treenet.co.nz> wrote:
> On 15/11/10 20:05, RM wrote:
>>
>> Hello all,
>>
>> I am running Squid Cache: Version 2.6.STABLE21 on CentOS 5.5 and have
>> been using delay pools to limit clients' bandwidth usage. Here is the
>> delay pool section and related ACL of the squid.conf file. I have
>> included the entire squid.conf at the end of the message:
>>
>> acl all src 0.0.0.0/0.0.0.0
>> delay_pools 1
>> delay_class 1 1
>> #1Mbps
>> delay_parameters 1 131072/131072
>> delay_access 1 allow all
>>
>> I have used the above delay pool configuration countless times
>> previously and I did not have any issue but for some reason there is a
>> client that is able to bypass the delay pool bandwidth restriction and
>> transfter at rates of 5Mbps+.
>>
>> Any help would greatly be appreciated.
>>
>> Thanks in advance!
>>
>> Ron M.
>>
>
> More likely that those requests are ones where the client actualy
> disconnected. Your quick_abort setting configure Squid to keep going after a
> disconnect. This happens outside the pooling since there is no client to
> pool.
>
> It *might* be a client doing some tricky request behaviour. You could pick
> this up by a) these requests are *all* MISS requests (indicating
> only-of-cached header preventing slow network access), or b) these requests
> following an earlier request within a very short time (indicating a leach
> re-attachment once the above pool detachment has been done by Squid).
>
> Amos
> --
> Please be using
>  Current Stable Squid 2.7.STABLE9 or 3.1.9
>  Beta testers wanted for 3.2.0.3
>
Received on Mon Nov 15 2010 - 19:29:33 MST